In ancient Persia, saffron ( " Crocus sativus "'Hausknechtii') was cultivated at Isfahan in the 10th century BC . There, Persian saffron threads have been found interwoven into ancient Persian royal carpets and funeral shrouds.
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The main reason saffron is considered one of the most expensive spices in the world is due to the cultivation process coupled with the amount of produced saffron per Crocus " ( Crocus sativus ) " cultivated " ."
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Ancient Persians cultivated Persian saffron ( " Crocus sativus "'Hausknechtii') in Derbena, Isfahan, and Khorasan by the 10th century BC . At such sites, saffron threads were woven into textiles, ritually offered to divinities, and used in dyes, perfumes, medicines, and body washes.
